Externalities of development of the sharing economy in tourism cities

The purpose of the paper is to identify the state-of-the-art of scientific research on externalities generated in cities by the sharing economy in tourism (SET) based on an extensive literature review.,This review detected benefits and costs of the SET in cities development described in the literature using the economic externalities theory approach. The SALSA (Search, AppraisaL, Synthesis and Analysis) research procedure was used to collect relevant academic articles. For findings, the qualitative and quantitative content analysis combined to make a critical analysis of selected papers was conducted.,Thirty articles devoted to the impact of the SET in cities were identified. Five topics that gained researchers’ attention were recognized: real estate market; transportation; quality of life and gentrification; entrepreneurship and innovativeness of citizens; and local budgets’ incomes. The studies that present externalities of development of the SET in a more complex way are extremely rare.,Research limitations are related to the methods used. The subjectivism of the research is a limitation to possibilities to achieve similar results when analyzing the same set of papers by different researchers. The results then are not to be generalized.,The research reveals a list of problems with externalities of the development of the SET in tourism destinations. Those problems are to be solved by policymakers in cities.,This study identified the gaps of previous research on the impacts of the SET on cities’ development. The paper presented an original conceptualization of future research.